Crystal collecting apparatus including aspiration nozzle



Dec. 31, 1968 R. P. INCHAUSTI CRYSTAL COLLECTING APPARATUS INCLUDINGASPIRATION NOZZLE Sheet of 5 Filed 001:.

IIUI/EIUTOA. ROBERTO Pm nucmqusr/ Dec. 31,

Filed Oct.

1R. P. INCHAUSTI 3,419,219 I CRYSTAL COLLECTING APPARATUS INCLUDINGASPIRATION NOZZLE Sheet of 3 lIVl/EIVTOR. ROBERTO PLA l/UCHQUSTI Dec.31, 1968 R. P. INCHAUSTI CRYSTAL COLLECTING APPARATUS INCLUDINGASPIRATION NOZZLE Sheet Filed Oct. 7, 1966 IIUVEIUTOR.

POBERTO PAH INCHHUST/ ATTORIUE),

United States Patent 3,419,219 CRYSTAL COLLECTING APPARATUS INCLUDINGASPIRATION NOZZLE Roberto Pla Iuchausti, Rocas 151, Jardines dePedregal, Mexico Filed Oct. 7, 1966, Ser. No. 585,053 Claims priority,application Mexico, July 28, 1966,

0,2 3 Claims. (Cl. 239-4173) ABSTRACT OF THE DISCLOSURE Apparatusparticularly adapted for recovering crystallized material ejected froman aspiration nozzle confined in a housing in which pressurized air isdirected through an outer rigid conduit and coaxially around an innerfeed pipe having a coaxial insulating chamber formed by a coaxialplastic inner hose, in which a tubular nozzle element threadedly engagesin the plastic inner hose and is confined by a rigid ring circumposedabout the hose within the end of the feed pipe, and the nozzle elementincludes radial openings disposed above a reduced diameter outlet at theterminal end of the outer conduit.

This invention relates to an aspiration gun and, more particularly, toan aspiration assembly or gun for use in ejecting flowable materials tobe crystallized into a crystalization chamber.

It is an object of this invention to provide an aspiration gun forflowable materials of low or high solid content to recrystallize or dry,by aspiration at a high temperature or a low temperature, the saidsolids.

It is another object of this invention to provide an aspiration gun ofthe type described hereinafter which includes a main tubular portionhaving an ejector end and an inlet end and with a throat adjacent theejector end to eject an annular stream of high velocity air and a feedertube disposed coaxially in the portion having a nozzle at the ejectorend to expel liquids carrying material to be crystallized into theannular stream.

Another object of this invention is to provide a device of the typedescribed generally in the preceding paragraph and more particularlyhereinafter wherein the said feeder tube includes an insulation jacketcircumposed thereabout and confined by an outside tube around an insidetube.

Another object of this invention is to provide a device of the typedescribed hereinafter having its parts arranged, constructed and adaptedas set forth hereinafter for the purposes specified which is simple andinexpensive to operate and is composed of parts which are adapted forassembly in an inexpensive manner and which may be disassembled forcleaning purposes.

In accordance with these and other objects which will become apparenthereinafter, the instant invention will now be described with referenceto the accompanying drawings illustrating a preferred embodimentthereof.

In the drawings:

FIGURE 1 is a partial elevation view which is partly in cross section toillustrate the operation of the instant assembly;

FIGURE 2 is a side elevation view of the gun which has been partlybroken away for purposes of illustration;

FIGURE 3 is a view in cross section taken along the plane indicated bythe line 33 of FIGURE 2 and looking in the direction of the arrows;

FIGURE 4 is a partial elevation view which has been broken awayillustrating the upper left-hand portion of FIGURE 2 in cross section;

FIGURE 5 is a cross-sectional view taken along the plane indicated bythe line 55 of FIGURE 4 and looking in the direction of the arrows;

FIGURE 6 is a top plan view of FIGURE 4;

FIGURE 7 is an enlarged elevation view of the nozzle 5 at the upper endof FIGURE 4;

FIGURE 8 is an enlarged view in cross section of the nozzle 5 at theupper end of FIGURE 4; and

FIGURE 9 is a view in cross section taken along the plane indicated bythe line 9-9 of FIGURE 8 and looking in the direction of the arrows.

Referring to the drawings, wherein like reference characters designatelike or corresponding parts throughout the different views, andreferring particularly to FIGURE 1, the numeral 1 generally designatesan injector means or aspiration gun to introduce material from one endof the gun into the main chamber of the housing 13 in droplet orparticle form carried on a stream of high velocity gas, such as air, tobe crystallized. The other end of the gun 1 is connected to a source 14of high velocity air, such as the fan 14. The gun, when so connected,comprises a conduit through which a gas current may flow to the gunoutlet in circumposed relation of the co-axially arranged nozzle means5. The product to be crystallized is delivered to the gun through asuitable pipe, such as that designated by the numeral 17, which includesregulating means such as the valve 18. The said pipe means 17 isconnected to the gun. The hose 6 which is of flexible material isprovided to connect the gun 1 to the delivery side of the fan 14 and athreaded coupling 7 is adapted to connect the gun to the hose 6, wherebycleaning and adjusting procedures may be conducted with respect to theaspiration gun. The aspiration gun comprises, as can be seen in FIGURE2, a curved tube or pipe which is dimensioned in accordance with theparticular installation in which it is used. The ejector end of the gunis provided with a throat of reduced cross-sectional area to increasethe velocity of the gas on ejection therefrom. In coaxial arrangementand extending through the substantial length of the gun shown there isdisposed a feeder tube 2 which by reason of its coaxial relation withthe gun follows the contour thereof and because it is of a smallerdiameter than the gun diameter in size, is separated from the insidewall of the gun and held in coaxial relation by spacers 4 arrangedinteriorly along the length of the gun. Inside of the feeder tube 2there is disposed, also in coaxial relation with the gun and,consequently, the feeder tube, an inside hose 15 which is of a suitable,flexible plastic material and is adapted to conduct a solution orflowable mixture to be crystallized to the aspiration gun outlet. Theaspiration air supply flows within the circumposed space 3 around thefeeder tube 2 and past the nozzle 5 in a stream which is apparent oninspection of FIGURE 4 and which will be explained hereinafter. Theinside hose, it will be noted, terminates substantially at and slightlyinside of the delivery end of the feeder tube 2 and is arranged to expelflowable material through the radial orifices 9 with which it isprovided. The aspiration is caused by the liquid expelled through theorifices 9 being entrained by the high velocity stream of air from thenozzle passing through the space 3. As seen in FIG- URE 3, the other endof the feeder tube and the coaxial inside hose 15 are connected to thepipe 17 which controls the flow of flowable materials from a source bymeans of the valve 18 and to the inlet side of the gun. Also, thethreaded section on the coupling 7 adapts it for connection with matingthreads on the flexible hose 6 which connects to the fan 14. Referringto FIGURE 4, the aspiration nozzle 5 is connected to the plastic hose 15as by the threads 10. A holding ring 8 may be provided to hold and gripthe hose to the threaded projecting portion of the nozzle 5, and thesaid ring may be utilized as a spacer to maintain the coaxial relationof the feeder tube 2 and inside hose 15 with the air space 16therebetween being of assistance in cooling hot fiowable materials to beatomized. The nozzle and feeder tube are held in substantially therelative relation with respect to the gun body shown in FIGURE 4 bymeans of the spacer 4 so that the main stream of air flow through thespace 3 is around the nozzle and in this way aspirates the materialsexpelled through the orifices 9. It will be apparent that the nozzleincludes a bore 11 or chamber which connects with and is a continuationinside hose interior to flow the materials to the lateral openings 9.The numeral 12 indicates two orifices or holes which are useful fordetachably connecting the nozzle in the gun.

In the preferred embodiment, the ouside tube is of rigid material andoperates as a guide tube for the inside tube so that it may be removedand inserted readily and without disturbing the relative coaxialpositioning arrangement of the feeder tube in chief with respect to thegun.

While the instant invention has been shown and described herein in Whatis conceived to be the most practical and preferred embodiment, it isrecognized that departures may be made therefrom within the scope of theinvention, which is therefore not to be limited to the details disclosedherein but is to be accorded the full scope of the claims so as toembrace any and all equivalent apparatus and articles.

What is claimed is:

1. Apparatus for collecting material to be crystallized comprising, incombination:

a vertical housing for confining crystallized material;

an aspirator assembly (1) supported on said housing and comprisingnozzle means extending upwardly into said housing;

means (14) for supplying high pressure air exteriorally of said housingand including an outlet conduit connected to said gun,

said gun comprising a rigid tubular conduit connected at one end of saidoutlet conduit and projecting laterally into said housing andterminating at said nozzle means,

said rigid conduit including a reduced diameter open end merging into alarger diameter portion therebelow whereby increased velocity air isexpelled from said open end,

feed pipe means extending axially into said rigid tubular conduit andsupported in coaxial relation therein and terminating at said nozzlemeans,

said feed pipe means comprising a rigid outer tube and an inner plastichose disposed in spaced relation from the inner surface of said rigidouter tube and defining an annular coaxial insulation spacetherebetween,

an annular, rigid, ring circumposed about said plastic hose adjacentsaid nozzle means and disposed within said rigid outer tube,

said nozzle means comprising a tubular, externallythreaded portionengaged within said plastic hose and confined thereat by said annularring, said tubular portion including an axial bore (11) communicatingwith radial orifice portions spaced above the open end of said reduceddiameter portion of said rigid conduit, said tubular portions includingan annular flange, below said radial orifices and clampingly engagingthe terminal ends of said feed pipe rigid tubular conduit and saidplastic hose at said rigid ring.

2. The structure as claimed in claim 1 in which said feed pipe includesintermediate control valve means exteriorally of said housing formetering the flow of material therethrough.

3. The structure as claimed in claim 1 in which said rigid tubularconduit includes a detachable, flexible coupling section exteriorally ofsaid housing for facilitating maintenance and repair.

References Cited UNITED STATES PATENTS 719,587 2/1903 Hasbrouck 239-371X 1,321,358 11/1919 Beck 239-425 2,252,556 8/1941 Crosiar 239-139 X2,515,929 7/1950 Ofeldt 239-424 2,532,851 12/1950 Meyer 239-425 X2,815,982 12/1957 Bleamaster 239-139 X 3,022,013 2/ 1962 Bruinsma239-371 X 3,161,985 12/1964 Fiske et al. 239-139 X FOREIGN PATENTS1,213,441 11/ 1959 France.

EVERETT W. KIRBY, Primal Examiner.

US. Cl. X.R.

